From c00603704e7d066ff7b50df280aa275b0b5dd1c0 Mon Sep 17 00:00:00 2001 From: Wilson Snyder Date: Fri, 11 Jan 2013 07:05:25 -0500 Subject: [PATCH] Commentary --- bin/verilator | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/bin/verilator b/bin/verilator index c38dcb5a5..8c40ef515 100755 --- a/bin/verilator +++ b/bin/verilator @@ -1321,7 +1321,8 @@ OPT_FAST and OPT_SLOW affect. For best results, use OPT="-O2", and link with "-static". Nearly the same results can be had with much better compile times with OPT_FAST="-O1 -fstrict-aliasing". Higher optimization such as "-O3" may help, but gcc compile times may be excessive under O3 on -even medium sized designs. +even medium sized designs. Alternatively, some larger designs report +better performance using "-Os". Unfortunately, using the optimizer with SystemC files can result in compiles taking several minutes. (The SystemC libraries have many little